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In page William Henry Harrison:

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The Indiana Territory held elections to the legislature's upper and lower houses for the first time in 1809. Harrison found himself at odds with the legislature after the abolitionists came to power, and the eastern portion of the Indiana Territory grew to include a large anti-slavery population.[3] The Territory's general assembly convened in 1810, and its anti-slavery faction immediately repealed the indenturing laws previously enacted.[18] After 1809, the Indiana legislature assumed more authority and the territory advanced toward statehood.[citation needed]